Modified internal and external geometry also permits operation with a wide range of non Colt-spec platforms such as the HK® MR556A1 and FN® SCAR™ MK 16/16S as well as AR15 mag wells with tighter tolerances. A redesigned bolt catch notch in the rear of the magazine provides increased bolt catch clearance, while an over-travel stop on the spine helps ensure the magazine will not over-insert on compatible weapons.

The PMAG 10 GEN M3 features a long-life stainless steel spring, four-way anti-tilt follower for reliable feeding, and an easy to disassemble flared floorplate to aid extraction and handling of the magazine while providing improved drop protection. In addition, an included pop-off Impact/Dust Cover can optionally be used to minimize debris intrusion and protect against potential damage during storage and transit.